10×50 BAK4 HD Binocular Night Vision Rangefinder Telescope&Compass Waterproof
Waterproof anti – fog telescope. Military grade manufacturing technology. Eyes 10 times comfortable focus. 50 mm objective lens size. 23 mm eyepiece size. BAK4 prism refractive index. Compass is divided into precise positioning. Material of lens: BAK4. Object lens diameter:50 mm. Exit pupil distance: 23.0 mm. Exit pupil diameter: 7.1 mm. Field of view: ft/1000… Read more 10×50 BAK4 HD Binocular Night Vision Rangefinder Telescope&Compass Waterproof